Dakatar da yaduwar iska ta sabon kambi! Masana kimiyya suna haɓaka nanofilter don kama kusan 100% na iska na coronavirus

Dukansu Hukumar Lafiya ta Duniya da Cibiyar Kula da Cututtuka ta Amurka sun fahimci cewa iska ita ce hanyar farko don yaduwar cutar ta COVID-19. Aerosols ƙananan barbashi ne na ruwa ko wasu abubuwa waɗanda za su iya tsayawa a cikin iska na dogon lokaci, ƙananan isa su shiga cikin tsarin numfashi.

Mutane suna sakin iska lokacin numfashi, tari, magana, ihu ko waƙa. Hakanan waɗannan iskan iska na iya ɗaukar kwayar cutar idan sun kamu da COVID-19. Shakar isassun isassun iska na coronavirus na iya sa mutum rashin lafiya. Ta hanyar buƙatar mutane su sanya abin rufe fuska, haɓaka iska na cikin gida da tsarin tace iska, rage bayyanar mutum da rage adadin iskar iska a cikin mahalli sune fifiko don dakile yaduwar COVID-19 aerosols.

Bincike kan sabbin ƙwayoyin cuta masu kamuwa da cuta yana da haɗari, kuma ba kasafai ba ne a cikin dakunan gwaje-gwaje tare da mafi girman matakan kare lafiyar halitta. Duk karatun har zuwa yau akan abin rufe fuska ko ingantaccen tacewa yayin bala'in sun yi amfani da wasu kayan da ake tunanin yin kwaikwayi girman da halayen iska na SARS-CoV-2. Sabon binciken ya inganta akan hakan, gwajin maganin saline mai iska da iska mai dauke da coronavirus daga dangi guda da kwayar cutar da ke haifar da COVID-19 amma tana cutar da beraye kawai.

Yun Shen and George Washington University colleague Danmeng Shuai created a nanofiber filter that delivers a high voltage through a drop of polyvinylidene fluoride liquid to a spinning thread about 300 nanometers in diameter—about 167 times thinner than a human hair . This process created pores just a few micrometers in diameter on the nanofibers’ surface, helping them capture 99.9 percent of coronavirus aerosols.

Fasahar samarwa, wacce aka sani da electrospinning, tana da tsada kuma ana iya amfani da ita don samar da matattarar nanofiber don kayan kariya na sirri da tsarin tace iska. Electrospinning kuma yana barin cajin electrostatic akan nanofibers, wanda ke haɓaka ƙarfin su na kama iska, kuma yawan porosity ɗin sa yana sauƙaƙa numfashi yayin sanye da matattarar electrospun nanofiber.

“Electrospinning technology can facilitate the design and manufacture of masks and air filters,” said Prof. Yun Shen. “Using electrospinning technology to develop new types of masks and air filters has good filtration performance, economic feasibility and scalability. Being able to meet the demand for masks and air filters in the field is very promising.”